The world itself is becoming much smaller by using modern traffic and TV, telephone and so on. Life today is much easier than it was hundreds of years ago, but it has also brought new problems. One of the biggest is pollution. Pollution comes in many ways. We see it, smell it, drink it and even hear it.

The more people, the more pollution. Many years ago, the problem was not so serious because there were not so many people. Man is now slowly polluting the whole world..

Air pollution is still the most serious. It’s bad to all living things in the world. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us become angry more easily.

Many countries are making rules to fight pollution. They stop people from burning coal in houses and factories in the city.

The pollution of SO2 is now the most dangerous problem of air pollution. It is caused by heavy traffic. It is sure that if there are fewer people driving, there will be less air pollution.

1.Our world is becoming much smaller _______.

A．because the earth is being polluted day and night

B．thanks to science development

C．because of the rise in population

D．because the earth is blown away by the wind every year

2.Thousands of years ago, life was _______it is today.

A．much easier than   B．as easy as          C．as hard as         D．much harder than

3.Pollution comes in many ways. We can even hear it. Here “it” means______.

A．Water pollution     B．air pollution        C．noise pollution     D．rubbish

4.Air pollution is the most serious kind of pollution because ________.

A．it’s bad to all living things in the world      B．it makes much noise

C．it has made our rivers and lakes dirty         D．it makes us become angry more easily

5.Which of the following is NOT TRUE?

A．Many countries are making rules to fight pollution.

B．The pollution of the earth grows as fast as the world’s population does.

C．From now on, maybe people should try to go to work by bus or bike instead of car ormotorbike. It is helpful to fight against the problem of SO2.

D．The problem of pollution is not so serious because there are so many people

The world itself is becoming much smaller by using modern traffic and modern communication means(交流方式). Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the biggest is pollution. To pollute means to make things dirty. Pollution comes in many ways. We see it, smell it, drink it and even hear it.
Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious because there were not so many people. When the land was used up or the river was dirty in a place, men moved to another place. But this is no longer true. Man is now slowly polluting the whole world.
Air pollution is still the most serious. It’s bad to all living things in the world, but it is not only one kind of pollution. Water pollution kills fish and pollutes drinking water. Noise pollution makes us become angry more easily.
Many countries are making rules to fight against pollution. They stop the people from burning coal in houses and factories in the city, and from blowing dirty smoke into the air.
The pollution of SO2 is now the most dangerous problem of air pollution. It is mostly caused by heavy traffic. It is certain that if there are fewer people driving, there will be less air pollution.
The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must try to control the growth of population at the same time.

1. 1.

   Our world is becoming much smaller ______.

   1. A.
      because the earth is being polluted day and night
   2. B.
      because science is developing
   3. C.
      because of the rise in population
   4. D.
      because the earth is blown away by the wind every year
2. 2.

   Thousands of years ago, life was______it is today.

   1. A.
      much easier than
   2. B.
      as easy as
   3. C.
      as hard as
   4. D.
      much harder than
3. 3.

   Pollution comes in many ways. We can even hear it. Here “it” means______ .

   1. A.
      water pollution
   2. B.
      air pollution
   3. C.
      noise pollution
   4. D.
      rubbish
4. 4.

   What is the most dangerous problem of air pollution?

   1. A.
      CO₂
   2. B.
      H₂O
   3. C.
      SO₂
   4. D.
      CO
5. 5.

   Air pollution is the most serious kind of pollution because_______ .

   1. A.
      it’s bad to all living things in the world
   2. B.
      it makes much noise
   3. C.
      it has made our rivers and lakes dirty
   4. D.
      it makes us become angry more easily

Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious because there were not so many people. When the land was used up or the river was dirty in a place, men moved to another place. But this is no longer true. Man is now slowly polluting the whole world. ?

Air pollution is still the most serious. It’s bad to all living things in the world, but it is not only one kind of pollution. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us become angry more easily. ?

Many countries are making rules (法规) to fight pollution. They stop the people from burning coal(煤) in houses and factories in the city, and from blowing dirty smoke into the air. ?  The pollution of SO₂ is now the most dangerous problem of air pollution. It is caused (引起)by heavy traffic. It is certain that if there are fewer people driving, there will be less air pollution. ?

The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must keep careful of the rise in pollution at the same time.

1. Our world is becoming much smaller 　　　　 . ?

A . because the earth is being polluted day and night?

B. thanks to science developing?

C. because of the rise in pollution?

D. because the earth is blown away by the wind every year

2. Thousands of years ago, life was 　　　　  it is today. ?

A. much easier than　　　　    　　　　 B. as easy as   

C. as hard as　　　　　　　　　　　　   D. much harder than

3. Pollution comes in many ways. We can even hear it. Here “it” means 　　　　 . ?

A. water pollution　　　　　　　　　　  B. air pollution   

C. noise pollution　　   　　　　　　   D. rubbish

4. Air pollution is the most serious kind of pollution because 　　　　 . ?

A. it’s bad to all living things in the world?

B. it makes much noise?

C. it has made our rivers and lakes dirty?

D. it makes us become angry more easily

5. Which of the following is not true?

A. Many countries are making rules to fight pollution. ?

B. The pollution on the earth grows as fast as the world’s population does. ?

C. From now on, maybe people try to go to work by bus or bike instead of car or motorbike. It is helpful to fight against the problem of SO_2.

D. The problem of pollution is not so serious because there are not so many people.

阅读理解

　　The world itself is becoming much smaller by using modern traffic and modern communication means (通信设备). Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the biggest problems is pollution. To pollute means to make things dirty. Pollution comes in many ways. We see it, smell it, drink it and even hear it.

　　Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious because there were not so many people. When the land was used up or the river was dirty in one place, man moved to another place. But this is not longer true. Man is now slowly polluting the whole world.

　　Air pollution is still the most serious. It's bad for all living things in the world, but it is not the only one kind of pollution. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us angry more easily.

　　Many countries are making rules to fight pollution. They stop people from burning coal in houses and factories in the city, and from putting dirty smoke into the air. Pollution by SO₂ is now the most dangerous kind of air pollution. It is caused (引起) by heavy traffic. We are sure that if there are fewer people driving, there will be less air pollution.

　　The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must take care of the rise in pollution at the same time.

1．________, our world is becoming much smaller.

[　　]

A．Because of the rise in pollution

B．Thanks to science development

C．Because the earth is being polluted day and night

D．Because the earth is blown away by the wind every year

2．Hundreds of years ago, life was ________ it is today.

[　　]

3．Pollution comes in many ways. We can even hear it. Here “it” means ________.

[　　]

4．Air pollution is the most serious kind of pollution because ________.

[　　]

A．it makes much noise

B．it makes us angry more easily

C．it make our rivers and lakes dirty

D．it's bad for all living things in the world

5．Which of the following is NOT true?

[　　]

A．Many countries are making rules to fight pollution.

B．The pollution of the earth grows as fast as the world pollution does.

C．The problem of pollution is not so serious because there are not so many people living on the earth.

D．If people could go to work by bus or by bike instead of car or motorbike, it would be helpful in fighting against the problem of SO₂.